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Searched
defs:dT
(Results
1 - 5
of
5
) sorted by null
/frameworks/native/services/sensorservice/
SensorFusion.cpp
65
const float
dT
= (event.timestamp - mGyroTime) / 1000000000.0f;
66
mFusion.handleGyro(vec3_t(event.data),
dT
);
68
const float freq = 1 /
dT
;
70
const float alpha = 1 / (1 +
dT
); // 1s time-constant
/frameworks/base/libs/common_time/
clock_recovery.cpp
92
const float ClockRecoveryLoop::
dT
= 1.0;
97
const float ClockRecoveryLoop::bias_RC = (
dT
/ (2 * 3.14159f * bias_Fc));
98
const float ClockRecoveryLoop::bias_Alpha = (
dT
/ (bias_RC +
dT
));
254
delta_f = last_delta_f_ -
dT
*(CO - CObias);
259
dCO = Kc * (1.0f +
dT
/Ti) * delta_f - Kc * last_delta_f_;
clock_recovery.h
59
static const float
dT
;
/frameworks/base/core/java/android/hardware/
LegacySensorManager.java
411
float
dT
= (mT[j] - mT[j+1])*ns;
412
dT
*=
dT
;
413
A += Z*
dT
;
414
B += T*(T*
dT
);
415
C += (T*
dT
);
416
D += Z*(T*
dT
);
417
E +=
dT
;
/development/samples/AccelerometerPlay/src/com/example/android/accelerometerplay/
AccelerometerPlayActivity.java
161
public void computePhysics(float sx, float sy, float
dT
, float dTC) {
178
* integrator is defined as x(t+
dt
) = x(t) + x(t) - x(t-
dt
) +
180
*
dt
very well, a time-corrected version is needed: x(t+
dt
) =
181
* x(t) + (x(t) - x(t-
dt
)) * (
dt
/dt_prev) + a(t).t^2 We also add
182
* a simple friction term (f) to the equation: x(t+
dt
) = x(t) +
183
* (1-f) * (x(t) - x(t-
dt
)) * (
dt
/dt_prev) + a(t)t^
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